Pipe-valve for oil-wells



(No Model.) 4

` l J. KEER.

PIPE VALVE FOR .OIL WELLS.

No. 556,85o. l Patented Mar. 24, 1896.

UNITED STATES PATENT OEEICE.

JAMES KIFER, OF NORTH HOPE, PENNSYLVANIA.

PIPE-VALVE FO'YR OIL-WELLS.

SPECIFICATION forming part of Letters Patent No. 556,850, dated March24, 1896. Application led January 18, 1895. Serial No. 635,371. (Nomodel.)

To all whom it may con/cern.'

Beit known that I, JAMES KIFER, a citizen of the United States, residingat North Hope, in the county of Butler and State of Pennsylvania, haveinvented certain new and useful Improvements in Pipe-Valves forOil-Wells; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it pertains to make and use the same,reference being had to the accompanying drawings, which form a part ofthis specication.

My invention relates to an improved oilwell-pumping valve, the objectbeing to provide a packing that may be expanded or contracted indiameter without removing the sucker-rods, together with certain detailsof construction and combination of parts, as will be fully describedhereinafter.

In the accompanying drawings, Figure 1 is a side elevation of myimproved valve, which is constructed and arranged in accordance with' myinvention. Fig. 2 is a side sectional elevation of the same, partlyshown in elevation. Fig. 3 is an inverted plan view of my improvedvalve. view of the valve, said section taken on the line :e a: of Fig.

To put my invention into practice I provide a casting 1, cylindrical inform and having projecting portions 3 and recesses 2 at the base,adapted to engage with the top of the standing valve in the bottom ofthe well and thereby prevent the lower portion of my im proved valvefrom turning when it is desired to tighten the packing 13. Arranged atthe top of this casting l is an annular ring G, which will form a seatfor a ball-valve 7. Attached by means of a screw-thread to the casting 1is an annular ring or cylindrical extension 5, having an integra-lbridge or stop 8 formed therein to limit the movement of the ball-valve7. A tube 10 is connected to the upper end of the extension 5 and to thelower Fig. at is a sectional plan end of an ordinary valve-cage 12,having slots 4 and ball-valve 7 constructed in a manner well known inthe art, said connection between said tube and extension 5 and valvecage12 being effected by screw-threads, and upon said tube 10 are arrangedpackingrings I3. Y

In operation this valve is operated in the working barrel of an oil-wellby means of sucker-rods, (not shown,) and the packing 13 may be expandedwithout removing the said valve from the well. To expand the packing 13the valve is lowered until the slots 2 and projections 3 engage with thestationary valve below, commonly called the standing valve. When thisconnection has been made the sucker-rods are turned at the top of thewell, which will turn the cage 12 and the packingtube 10. This turningof the tube 10 will compress or permit the packing-rings 13 to expand,thereby enlarging the diameter of the same.

Having thus described my invention, I claim- The combination of thecylindric casting having projecting portions and recesses at the baseadapted to engage the top of the standing valve in the bottom of theWell, a ring arranged at the top of said casting, the ballvalve seatedin said ring, the cylindric eX- tension screwed upon said casting andhaving an integral bridge or stop to limit the movement of saidball-valve, the tube connected to the upper end of said cylindricextension and having threaded connections with the parts to which it isattached, substantially as set forth.

In testimony that I claim the foregoing I hereunto affix my signaturethis 24th day of October, A. D. 1894. Y

JAMES KIEER. [n s] In presence ofz- J. H. BELL, GEO. W. LOWEN.

